CLAS Physics Database

Measurement E151M2460

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.7473
Q2: 0.1205 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8436

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 282.0 -0.1863 0.2411 0.0302
0.45 282.0 -0.3209 0.2084 0.0307
0.45 294.0 -0.3851 0.2297 0.031
0.55 270.0 -0.3441 0.2105 0.0308
0.55 282.0 -0.1384 0.2065 0.0301
0.55 294.0 -0.0591 0.2366 0.03
0.65 270.0 -0.3894 0.2155 0.031
0.65 282.0 -0.318 0.1956 0.0307
0.65 294.0 0.2529 0.2423 0.0304
0.75 270.0 -0.2098 0.2198 0.0303
0.75 282.0 -0.3474 0.1974 0.0308
0.85 138.0 0.3117 0.2278 0.0306
0.95 126.0 -0.0995 0.2567 0.0301
0.95 138.0 -0.0388 0.2367 0.03
0.95 150.0 0.2107 0.2221 0.0303
0.95 162.0 0.0801 0.2019 0.03
0.95 174.0 -0.0389 0.2083 0.03
0.95 186.0 -0.3177 0.2178 0.0307
0.95 198.0 -0.3288 0.2531 0.0307
0.95 210.0 -0.22 0.2394 0.0303
0.95 222.0 -0.0519 0.2704 0.03